package com.time.workshop.utils;

import java.util.ArrayList;
import java.util.List;

import android.app.Dialog;
import android.content.Context;
import android.graphics.Color;
import android.view.Display;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.ScrollView;
import android.widget.TextView;

import com.time.workshop.R;

/**
 * 从下往上弹出拍照，选图片的dialog
 */
public class ActionSheetDialog
{
	private Context context;
	private Dialog dialog;
	private TextView txt_title;
	private TextView txt_cancel;
	private LinearLayout lLayout_content;
	private ScrollView sLayout_content;
	private boolean showTitle = false;
	private List<SheetItem> sheetItemList;
	private Display display;

	public ActionSheetDialog(Context context)
	{
		this.context = context;
		WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
		display = windowManager.getDefaultDisplay();
	}

	@SuppressWarnings("deprecation")
	public ActionSheetDialog builder()
	{
		// 获取Dialog布局
		View view = LayoutInflater.from(context).inflate(R.layout.toast_view_actionsheet, null);

		// 设置Dialog最小宽度为屏幕宽度
		view.setMinimumWidth(display.getWidth());

		// 获取自定义Dialog布局中的控件
		sLayout_content = (ScrollView) view.findViewById(R.id.sLayout_content);
		lLayout_content = (LinearLayout) view.findViewById(R.id.lLayout_content);
		txt_title = (TextView) view.findViewById(R.id.txt_title);
		txt_cancel = (TextView) view.findViewById(R.id.txt_cancel);
		txt_cancel.setOnClickListener(new OnClickListener()
		{
			@Override
			public void onClick(View v)
			{
				dialog.dismiss();
			}
		});

		// 定义Dialog布局和参数
		dialog = new Dialog(context, R.style.ActionSheetDialogStyle);
		dialog.setContentView(view);
		Window dialogWindow = dialog.getWindow();
		dialogWindow.setGravity(Gravity.LEFT | Gravity.BOTTOM);
		WindowManager.LayoutParams lp = dialogWindow.getAttributes();
		lp.x = 0;
		lp.y = 0;
		dialogWindow.setAttributes(lp);

		return this;
	}

	public ActionSheetDialog setTitle(String title)
	{
		showTitle = true;
		txt_title.setVisibility(View.VISIBLE);
		txt_title.setText(title);
		return this;
	}

	public ActionSheetDialog setCancelable(boolean cancel)
	{
		dialog.setCancelable(cancel);
		return this;
	}

	public ActionSheetDialog setCanceledOnTouchOutside(boolean cancel)
	{
		dialog.setCanceledOnTouchOutside(cancel);
		return this;
	}

	/**
	 * 
	 * @param strItem
	 *            条目名称
	 * @param color
	 *            条目字体颜色，设置null则默认蓝色
	 * @param listener
	 * @return
	 */
	public ActionSheetDialog addSheetItem(String strItem, SheetItemColor color, OnSheetItemClickListener listener)
	{
		if (sheetItemList == null)
		{
			sheetItemList = new ArrayList<SheetItem>();
		}
		sheetItemList.add(new SheetItem(strItem, color, listener));
		return this;
	}

	/** 设置条目布局 */
	@SuppressWarnings("deprecation")
	private void setSheetItems()
	{
		if (sheetItemList == null || sheetItemList.size() <= 0)
		{
			return;
		}

		int size = sheetItemList.size();

		// 高度控制，非最佳解决办法
		// 添加条目过多的时候控制高度
		if (size >= 7)
		{
			LinearLayout.LayoutParams params = (LayoutParams) sLayout_content.getLayoutParams();
			params.height = display.getHeight() / 2;
			sLayout_content.setLayoutParams(params);
		}

		// 循环添加条目
		for (int i = 1; i <= size; i++)
		{
			final int index = i;
			SheetItem sheetItem = sheetItemList.get(i - 1);
			String strItem = sheetItem.name;
			SheetItemColor color = sheetItem.color;
			final OnSheetItemClickListener listener = (OnSheetItemClickListener) sheetItem.itemClickListener;

			TextView textView = new TextView(context);
			textView.setText(strItem);
			textView.setTextSize(18);
			textView.setGravity(Gravity.CENTER);

			// 背景图片
			if (size == 1)
			{
				if (showTitle)
				{
					textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector);
				} else
				{
					textView.setBackgroundResource(R.drawable.actionsheet_single_selector);
				}
			} else
			{
				if (showTitle)
				{
					if (i >= 1 && i < size)
					{
						textView.setBackgroundResource(R.drawable.actionsheet_middle_selector);
					} else
					{
						textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector);
					}
				} else
				{
					if (i == 1)
					{
						textView.setBackgroundResource(R.drawable.actionsheet_top_selector);
					} else if (i < size)
					{
						textView.setBackgroundResource(R.drawable.actionsheet_middle_selector);
					} else
					{
						textView.setBackgroundResource(R.drawable.actionsheet_bottom_selector);
					}
				}
			}

			// 字体颜色
			if (color == null)
			{
				textView.setTextColor(Color.parseColor(SheetItemColor.Blue.getName()));
			} else
			{
				textView.setTextColor(Color.parseColor(color.getName()));
			}

			// 高度
			float scale = context.getResources().getDisplayMetrics().density;
			int height = (int) (45 * scale + 0.5f);
			textView.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, height));

			// 点击事件
			textView.setOnClickListener(new OnClickListener()
			{
				@Override
				public void onClick(View v)
				{
					listener.onClick(index);
					dialog.dismiss();
				}
			});

			lLayout_content.addView(textView);
		}
	}

	public void show()
	{
		setSheetItems();
		dialog.show();
	}

	public interface OnSheetItemClickListener
	{
		void onClick(int which);
	}

	public class SheetItem
	{
		String name;
		OnSheetItemClickListener itemClickListener;
		SheetItemColor color;

		public SheetItem(String name, SheetItemColor color, OnSheetItemClickListener itemClickListener)
		{
			this.name = name;
			this.color = color;
			this.itemClickListener = itemClickListener;
		}
	}

	public enum SheetItemColor
	{
		Blue("#037BFF"), Red("#FD4A2E");

		private String name;

		private SheetItemColor(String name)
		{
			this.name = name;
		}

		public String getName()
		{
			return name;
		}

		public void setName(String name)
		{
			this.name = name;
		}
	}
}
